Diagnostic information 2-107
4062
937.70 Main drive motor
assembly failure
Loss of lock detected
by higher-level code.
Motor = type 0
The main drive motor assembly
may be faulty or has failed.
1. Check all connections on
the system card assembly.
2. Check all connections on
the main drive motor
assembly.
3. Replace the main drive
motor assembly. Go to
“Main drive motor
assembly removal (T650,
T652, T654)” on
page 4-24.
4. Replace the system card
assembly if problem
remains. Go to “System
card assembly removal
(T650, T652, T654)” on
page 4-69.
Error
code or
message
Error contents Description/Action Possible repair actions
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